Wormholes in AdS spacetimes where discussed in [1]}, in an attempt to yield some information about the physics of closed Universes. Such discussion is connected with the physics of inflation, and its connection with vacuum decay. A unique realization of such ideas is baby-Universe formation by quantum tunneling which eventually disconnect from the parent spacetime [2]}. Recently, these ideas of connecting the physics of wormhole spacetimes to baby-Universes were revisited in [3]}, using features associated with a negative cosmological constant and asymptotically AdS boundaries.
